[fix] restart gap

adapter/sandbox/reconciliation.py

@@ -0,0 +1,39 @@
+from dataclasses import dataclass
+from typing import Protocol
+from uuid import UUID
+
+from domain.sandbox import SandboxSession
+from usecase.interface import Logger
+
+
+class SandboxSessionStateSource(Protocol):
+    def list_active_sessions(self) -> list[SandboxSession]: ...
+
+
+class SandboxSessionRegistry(Protocol):
+    def replace_all(self, sessions: list[SandboxSession]) -> None: ...
+
+
+@dataclass(frozen=True, slots=True)
+class SandboxSessionReconciler:
+    state_source: SandboxSessionStateSource
+    registry: SandboxSessionRegistry
+    logger: Logger
+
+    def execute(self) -> list[SandboxSession]:
+        sessions_by_chat_id: dict[UUID, SandboxSession] = {}
+        for session in sorted(
+            self.state_source.list_active_sessions(),
+            key=lambda item: item.created_at,
+        ):
+            sessions_by_chat_id[session.chat_id] = session
+
+        sessions = list(sessions_by_chat_id.values())
+        self.registry.replace_all(sessions)
+        self.logger.info(
+            'sandbox_reconciled',
+            attrs={
+                'session_count': len(sessions),
+            },
+        )
+        return sessions